Heat transfer to packed beds

When heat is transferred between a fluid and a packed bed of particles, e.g. in a fixed bed catalytic reactor, the heat transfer coefficient depends on the flow conditions. A simple correlation due to Chilton and Colburn [37] 

The j factor is a function of Reynolds number and many correlations have been published. According to de Acetis and Thodos [38], for Reynolds numbers between 0.8 and 2100 

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Like adsoiption. the tempeiaiuie front can be roughly broken down into a stokfaioinetric part and a transfer part. The stoichiometric portion is deteimined I9 an omgy balance of the items above. There have been several studies of heat transfer to packed beds of particles that can be used to predict the heat transfer zone that will form. ... 

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